From 689e880ec8f5269114747b832b67d211e5812b15 Mon Sep 17 00:00:00 2001
From: liuyao <54liuyao@163.com>
Date: Mon, 21 Aug 2023 14:33:39 +0800
Subject: [PATCH] fix asan error

---
 source/libs/executor/src/scanoperator.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index 3d2eef66ea..37f1ea597d 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -1986,7 +1986,10 @@ void streamScanOperatorDecode(void* pBuff, int32_t len, SStreamScanInfo* pInfo)
   }
   void* buf = pBuff;
   buf = decodeSTimeWindowAggSupp(buf, &pInfo->twAggSup);
-  int32_t tlen = len - ((char *)pBuff - (char *)buf); // fix windows compile error
+  int32_t tlen = len - encodeSTimeWindowAggSupp(NULL, &pInfo->twAggSup);
+  if (tlen == 0) {
+    return;
+  }
 
   void* pUpInfo = taosMemoryCalloc(1, sizeof(SUpdateInfo));
   int32_t code = pInfo->stateStore.updateInfoDeserialize(buf, tlen, pUpInfo);
-- 
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